在heroku上部署rails3应用
参考官网步骤 https://devcenter.heroku.com/articles/rails3#deploy-your-application-to-heroku
以下是我的实际测试步骤：
1. 登录www.heroku.com注册账户
2.下载并安装Heroku Toolbelt: https://toolbelt.heroku.com/
3.在git bash(toolbelt会安装该软件)中登录heroku
4.安装rails: gem install rails 【已安装则跳过此步】
5.cd d:\dev\ruby\
5.rails new myapp
6.cd myapp
7.打开文件"Gemfile"，将gem 'sqlite3'改为gem 'pg'
8.gem install rake -v '10.0.1'
9.gem install i18n -v '0.6.1'
10.gem install multi_json -v '1.3.7'
11.gem install builder -v '3.0.4'
12.gem install rack-test -v '0.6.2'
13.gem install tzinfo -v '0.3.35'
14.gem install coffee-script-source -v '1.4.0'
15.gem install execjs -v '1.4.0'
16.gem install coffee-script -v '2.2.0'
17.上 https://github.com/oneclick/rubyinstaller/downloads/ 下载DevKit-tdm-32-4.5.2-20111229-1559-sfx.exe (我使用的ruby是1.9.3)。然后解压到D:\DevKit，git bash中切换到该目录后执行ruby dk.rb init和ruby dk.rb install，详情参见 https://github.com/oneclick/rubyinstaller/wiki/Development-Kit
18.gem install json -v '1.7.5'
19.cd d:\dev\ruby\myapp
20.gem install rdoc -v '3.12'
21.gem install coffee-rails -v '3.2.2'
22.gem install jquery-rails -v '2.1.3'
23.gem install pg -v '0.14.1'
24.gem install sass -v '3.2.3'
25.gem install sass-rails -v '3.2.5'
26.gem install uglifier -v '1.3.0'
27.bundle install
28.git init
29.git add .
30.git commit -m 'init'
31.heroku create
32.git push heroku master
33.heroku open 【执行该命令可自动打开浏览器，查看上传的应用】